ET INFO WinHttpRequest Downloading EXE

Query · suricata

flow:established,from_server;
flowbits:isset,et.WinHttpRequest;
file_data;
content:"MZ"; within:2;
byte_jump:4,58,relative,little;
content:"PE|00 00|"; distance:-64; within:4;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET INFO WinHttpRequest Downloading EXE · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET INFO WinHttpRequest Downloading EXE";
    flow:established,from_server;
    flowbits:isset,et.WinHttpRequest;
    file_data;
    content:"MZ"; within:2;
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; distance:-64; within:4;
    classtype:misc-activity;
    sid:2019822; rev:8;
    metadata:attack_target Client_and_Server, created_at 2014_12_01, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_04_20;
)

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